linux-kernel - Re: [PATCH v2 2/3] net: phy: fixed_phy: fix use-after-free when checking link GPIO

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Date:   Tue, 15 Oct 2019 14:54:02 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:     Linus Walleij <linus.walleij@...aro.org>, netdev@...r.kernel.org,
        "David S . Miller" <davem@...emloft.net>,
        linux-kernel@...r.kernel.org,
        Florian Fainelli <f.fainelli@...il.com>,
        Heiner Kallweit <hkallweit1@...il.com>
Subject: Re: [PATCH v2 2/3] net: phy: fixed_phy: fix use-after-free when
 checking link GPIO

On Mon, Oct 14, 2019 at 10:40:21AM -0700, Dmitry Torokhov wrote:
> If we fail to locate GPIO for any reason other than deferral or
> not-found-GPIO, we try to print device tree node info, however if might
> be freed already as we called of_node_put() on it.
> 
> Acked-by: David S. Miller <davem@...emloft.net>
> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@...il.com>

Reviewed-by: Andrew Lunn <andrew@...n.ch>

    Andrew